Common Card
Compare
This game is played like the card game
“War.” Use 10 grid cards. Choose what the “common card” will be. Five or Nine are good numbers to start
with. Put the “common card” on the table. Deal the rest of the cards evenly between two
players. Decide who will go first. That person turns over one card and adds that
amount to the common card. That person
should explain “how they know.” For
example, if 5 is the common card and player one turns over a 6 they might say,
“I know that 5 and 6 is 11 because I know 5+5=10 and one more is 11. Player 2 then turns over a card and adds the
value of that card to the common card.
Player two also explains “how they know.” Then whoever has the greater sum takes both
of the cards that were turned over. The
common card stays there. If both players
turn over the same number, they have a “war,” both put down two cards, face
down, and then flip a third card (one player at a time) to see who wins all the
cards that have been put down. Again the
common card stays on the table.
Common
Card 5: This helps students anchor on
the number 5. Seeing the five and some
more in numbers helps students be flexible with numbers.
Common
Card 9: This helps students develop
automaticity with 9’s facts. Students
should be able to verbalize how they are either making a ten or subtracting one
to get the answer.
Common
Card 8: This is similar to the 9’s
strategy, students think about making a ten or subtracting 2.
Directions
for Doubles and Doubles +/- 1
Game Board in Homework Log
Object: To practice the fact strategies of Doubles or Doubles +/- 1.
Object: To practice the fact strategies of Doubles or Doubles +/- 1.
Using
ten-grid cards expands the learning beyond just the addition and memorizing of
facts. Seeing the visual helps students
see subtraction as well as ways to be flexible in adding numbers.
The
play: The deck must be arranged to
produce doubles or doubles +/- 1. For
Doubles: Put two duplicate cards in a
row in a random order as a deck. Player
One draws two cards, adds them together and states how they added them. For example, 7 + 7 = 14 because I know 5 and
5 is 10 and there are 4 more. Player One
then places a bean or a penny on a “14” on the game board. The first person to make a square of 4
covered spaces wins.
For
Doubles +/- 1: Arrange the deck so that
two cards in a row will produce a doubles +/- 1 fact (1+2, 2+3, 3+4, 4+5,
etc.). Play is the same as above. Player One draws two cards, adds them and
states how they added them. For example,
7+6=13 because I know 6+6=12, so one more is 13 (or 7+7=14 and one less is 13).
